#233A79#233A79

#233A79 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.111 H 266.0°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#233A79
RGB	rgb(35, 58, 121)
HSL	hsl(224, 55%, 31%)
HSV	hsv(224, 71%, 47%)
CMYK	cmyk(71.1%, 52.1%, 0%, 52.5%)
CIE-LAB	lab(26.05, 13.96, -38.68)
CIE-LCH	lch(26.05, 41.13, 289.84°)
OKLab	oklab(36.75% -0.0078 -0.111)
OKLCH	oklch(36.75% 0.111 266)
XYZ	xyz(5.6562, 4.7634, 18.7068)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A79 #796223

analogous

#236579 #233A79 #372379

triadic

#233A79 #79233A #3A7923

tetradic

#233A79 #792365 #796223 #237937

square

#233A79 #792365 #796223 #237937

split-complementary

#233A79 #793723 #657923

monochromatic

#080C1A #15234A #233A79 #3151A8 #4B6ECB

Accessibility & contrast

On white

10.75

#233A79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#233A79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A79

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A79	#FFFFFF	#000000	##FFFFFF
##233A79	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16427B

Deuteranopia (green-blind)

#003A78

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #233a79;
/* rgb */ color: rgb(35, 58, 121);
/* oklch */ color: oklch(36.7% 0.111 266.0);

Tailwind

colors: {
  custom: {
    50: '#696fa0',
    500: '#233a79',
    950: '#000000',
  },
}

SCSS

$custom: #233a79;
$custom-light: #696fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#233a79",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 121
  },
  "hsl": {
    "h": 223.953,
    "s": 55.128,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36748,
    "c": 0.11128,
    "h": 266
  },
  "luminance": 0.04764
}

Semantic roles & 50–950 ramp

primary

#233A79

secondary

#AC924C

accent

#B749DE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #233A79

Body copy rendered with the generated semantic roles for this colour.

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